Re: Any Cronyx Tau* (ce(4) or cp(4)) users ?

From: Gleb Smirnoff <glebius_at_freebsd.org>
Date: Thu, 16 Dec 2021 16:49:37 UTC
On Thu, Dec 16, 2021 at 09:30:41AM -0700, Warner Losh wrote:
W> > E> And we're doing that just because the drivers compiles ?
W> > G> We are doing that because the hardware is still produced ...
W> > E> ... a lot of obsolete hardware that we've removed are still produced ...
W> > G> I'd be interested to see at least one example ...
W> > E> This was an hypothetical situation.
W> >
W> > I don't know what to reply here. :(
W> 
W> The standards that Brooks, Ed and I have been using in retiring drivers has
W> been
W> "Still relevant to FreeBSD". Although whether or not something was still in
W> production
W> is an input into that, it's not the only factor in decisions made.
W> 
W> While that standard is a bit vague, I'm struggling understanding the case
W> for these
W> drivers still being relevant to FreeBSD in the absence of documented actual
W> use,
W> let alone a use case that we can do a cost-benefit analysis on.

Yes, so what I'm trying to say here is that right now cost of having the
drivers in the tree is virtually zero. Emmanuel says that benefit is zero.

I can't refute Emmanuel's statement, I can only speculate that benefit
could be non-zero, as apparently devices are still produced and E1 lines
still exist.

So I'm fine with removal if anybody demonstrates me a non-zero cost of
leaving the drivers in.

-- 
Gleb Smirnoff